KR102566430B1 - Dielectric epoxy material for paving and paving method using the same - Google Patents

Abstract

An object of the present invention is to provide an antibacterial insulating epoxy flooring material having excellent electrical insulation and excellent antibacterial function and a floor construction method using the same. As a coating agent, 20 to 60 parts by weight of a first epoxy resin having an epoxy resin equivalent weight (EEW) of 187 to 205 [g/eq] and 1 to 6 parts by weight of a reactive diluent for viscosity control having an epoxy resin equivalent weight (EEW) of 275 to 300 And, 2 to 20 parts by weight of a non-reactive diluent, 6 to 50 parts by weight of a filler, and 0.5 to 10 parts by weight of an antimicrobial agent as an additive are mixed to form the first main agent 11, and the active hydrogen equivalent (A.H.E.W) is 1 to 10 parts by weight of a curing agent resin of 350 to 400 [g/eq]; 2 to 20 parts by weight of a non-reactive diluent; 5 to 15 parts by weight of an amine curing agent having an active hydrogen equivalent (A.H.E.W) of 110 [g/eq]; and 0.1 to 2 parts by weight of an antibacterial agent as an additive; The first curing agent 12 is mixed by mixing, and the main agent and the curing agent are mixed in a weight ratio of 4 to 6: 1.

Description

Antibacterial insulating epoxy flooring and floor construction method using the same {DIELECTRIC EPOXY MATERIAL FOR PAVING AND PAVING METHOD USING THE SAME}

The present invention relates to a two-component room temperature curing type antibacterial insulating epoxy flooring material designed with epoxy resin and an amine curing agent resin as main components and a floor construction method using the same, and more particularly, to an antibacterial insulating epoxy flooring having excellent electrical insulation and antibacterial function It relates to a flooring material and a floor construction method using the same.

Recently, epoxy flooring materials that do not use volatile solvents have been in the limelight. On the other hand, flooring materials requiring electrical insulation in subways and power plant substations and antistatic flooring materials in precision industries such as semiconductor factories are required.

In addition, as such an epoxy floor agent, a two-component type of a main agent and a hardener is mainly used. As a characteristic of the floor agent, various conductive fillers are required for a certain level of adhesive strength, tensile strength, and compressive strength, and white or yellow as a pigment. A method of containing a series conductive filler is adopted.

In particular, recently, various metal oxides are also added as antibacterial agents in order to impart antibacterial properties to epoxy flooring agents.

However, when such a conductive filler or metal compound is used, insulation is inevitably deteriorated, and the viscosity of the epoxy resin composition increases due to the addition of a large amount of conductive filler or metal compound, making it impossible to work with a roller during painting, On the other hand, since more than a certain amount is added to satisfy the physical property standards of surface resistance, it will be difficult to satisfy all of the required physical property standards due to insufficient chemical resistance and coating appearance.

In order to solve these problems of the prior art, the room in which the inventions of Korean Patent Registration No. 10-0540213 (solvent-free epoxy antistatic flooring coating composition) and Korean Patent Registration No. 10-0666206 (solvent-free epoxy antistatic flooring coating composition) are disclosed there is.

The prior art is a non-solvent type that does not contain a volatile solvent that deteriorates the working environment in the function of the conventional flooring film composition as described above, and can be applied with a roller to satisfy the chemical resistance and surface resistance of the resulting coating film. For this purpose, a coating composition capable of satisfying the above requirements was proposed by mixing a certain amount of a specific conductive white pigment having high oil absorption but excellent conductivity and a specific conductive white pigment having somewhat insufficient conductivity but low oil absorption.

However, in the case of the prior art, although it is said that eco-friendliness is pursued by not using volatile solvents, there is a limit in eco-friendliness in a positive sense such as antibacterial property, and overall characteristics including insulation and strength have not been considered. .

Republic of Korea Patent Registration No. 10-0540213 (solvent-free epoxy coating composition for antistatic flooring) Republic of Korea Patent Registration No. 10-0666206 (solvent-free epoxy coating composition for antistatic flooring)

The present invention is to solve the above problems, and its object is to provide an antibacterial insulating epoxy flooring material having excellent electrical insulation and excellent antibacterial function and a floor construction method using the same.

Antibacterial insulation epoxy flooring according to one aspect of the present invention for achieving the above object is a two-component eco-friendly coating agent consisting of a main agent and a curing agent, a first epoxy having an epoxy resin equivalent weight (EEW) of 187 to 205 [g / eq] 20 to 60 parts by weight of resin, 1 to 6 parts by weight of a reactive diluent for viscosity control having an epoxy resin equivalent weight (EEW) of 275 to 300, 2 to 20 parts by weight of a non-reactive diluent, and 6 to 50 parts by weight of a filler , 0.5 to 10 parts by weight of an antibacterial agent as an additive, blending the first main agent 11, and 1 to 10 parts by weight of a curing agent resin having an active hydrogen equivalent (A.H.E.W) of 350 to 400 [g/eq]; 2 to 20 parts by weight of a non-reactive diluent; 5 to 15 parts by weight of an amine curing agent having an active hydrogen equivalent (A.H.E.W) of 110 [g/eq]; and 0.1 to 2 parts by weight of an antibacterial agent as an additive; The first curing agent 12 is mixed by mixing, and the main agent and the curing agent are mixed in a weight ratio of 4 to 6: 1.

Preferably, 0.1 to 5 parts by weight of an antifoaming agent, 0.1 to 5 parts by weight of a leveling agent, and 0.1 to 5 parts by weight of a dispersant are added to the first main agent 11 as other additives based on 100 parts by weight of the total content of the main subject. to be characterized

Also preferably, 1 to 10 parts by weight of a yellow pigment and 1 to 10 parts by weight of a white pigment are added to the first main agent 11 based on 100 parts by weight of the total amount of the main agent.

Also preferably, in the first main agent 11, the first epoxy resin is 45 to 50 parts by weight, the epoxy reactive diluent is 3.5 to 4.5 parts by weight, and the non-reactive diluent is a plasticizer combined in a first ratio 1.1 to 2 parts by weight of the reactive diluent and 2 to 5 parts by weight of the second non-reactive diluent that combines solvent and plasticizer, 29 to 42 parts by weight of the filler, 2.75 to 5 parts by weight of the antibacterial agent, In one curing agent 21, the curing agent resin is 3 to 5 parts by weight, and the non-reactive diluent is 1.5 to 3 parts by weight of the first non-reactive diluent that combines catalysts to increase the curing speed and physical properties to control the weakening of physical properties. 2 to 4 parts by weight of the second non-reactive diluent for maintenance, 10 to 11 parts by weight of the amine curing agent, and 0.55 to 1 part by weight of the antibacterial agent.

Also preferably, the main material and the curing agent are mixed in a weight ratio of 5: 1.

Also preferably, the antibacterial insulating epoxy flooring agent has adhesive strength, tensile strength, and compressive strength of 1.5 times or more of each standard value presented in the 'KS F 4923' standard for insulating flooring, respectively, and the insulation resistance is 10 ^{12 ~ 13} [Ω].

On the other hand, an epoxy floor construction method using an antibacterial insulating epoxy flooring according to another aspect of the present invention for achieving the above object is, (a) investigating the work area including the area or shape of the area to be installed with the antibacterial insulating epoxy flooring Performing and selecting a construction site (S100); (b) removing foreign matter from the construction site selected in step (a) (S200); (c) after the step (b), mixing a quick-drying primer and performing a quick-drying primer treatment, but applying a quick-drying primer obtained by mixing a second main agent and a second curing agent in a weight ratio of 1.5 to 2.5:1 (S300); and (d) after the step (c), when the quick-drying primer is dried, mixing the non-solvent type epoxy flooring and applying the mixture to the area to be constructed (S400); It is characterized in that it includes.

Preferably, in the step (d), based on the dry film thickness of 3 mm, the application area is 0.33 m 2 / ℓ, the amount of paint required is 4.05 kg / m 2, the temperature of the surface to be coated is 3 ° C or higher, and the dew point is 3 ° C or higher , characterized in that it is performed at a relative humidity of 80% or less.

The antibacterial insulating epoxy flooring material according to the present invention is to provide an antibacterial insulating epoxy flooring material having excellent electrical insulation and excellent antibacterial function and a floor construction method using the same.

The antibacterial insulating epoxy flooring material according to the present invention has excellent self-smoothness, a beautiful appearance after curing, excellent physicochemical performance such as impact resistance, chemical resistance, and durability, and also has high-level electrical performance such as electrical/mechanical rooms and substation rooms. It is suitable for use as a flooring material requiring insulation.

In addition, the insulating epoxy flooring material of the present invention is an insulating epoxy flooring material that simultaneously imparts raw material characteristics of 80% or more, more preferably 99.99%, of four types of antibacterial properties (4 strains such as Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aeruginosa, and Pneumococcus pneumoniae). It is possible to create a pleasant environment by introducing a new concept that can satisfy what was not available in epoxy flooring at the same time, and using it in the substation room of the subway or the electric room and machine room in the existing basement. Of course, other than that, the physical properties (adhesive strength, tensile strength, elongation at tensile break, compressive strength, insulation resistance, volume resistivity, surface resistivity) for insulated flooring materials exceed the standard values of KS F4923, KSM3015 and ASTM D 257 standards. By maintaining, it is possible to provide an eco-friendly multi-functional flooring that introduces a new concept that can satisfy customers.

In addition to the above objects, other objects and advantages of the present invention will become apparent through the detailed description of the embodiments with reference to the accompanying drawings.

1 is a view showing a process of mixing an antibacterial insulating epoxy flooring material according to an aspect of the present invention.
2 is a view showing a process of mixing a primer material for flooring only according to an aspect of the present invention.
Figure 3 is a flow chart of a floor construction method using an antibacterial insulating epoxy flooring according to another aspect of the present invention.
Figure 4a is a test report for the antibacterial test of the antibacterial insulating epoxy flooring of the present invention.
4b to 4e are actual photos of the antibacterial test of FIG. 4a.
Figure 5a is a test report for the adhesive strength, tensile strength, compressive strength and various insulation tests of the antibacterial insulating epoxy flooring of the present invention.
Figure 5b is a performance comparison table for various test results of Figure 5a.

Hereinafter, preferred embodiments of an antibacterial insulating epoxy flooring material and a floor construction method using the same according to the present invention will be described in detail with reference to FIGS. 1 to 12.

1 is a view showing a process of mixing raw materials for an antibacterial insulating epoxy flooring according to one aspect of the present invention, FIG. 2 is a view showing a process of mixing raw materials for a primer exclusively for flooring according to an aspect of the present invention, and FIG. 3 is another view of the present invention. It is a flow chart of a floor construction method using an antibacterial insulating epoxy flooring on the side.

Figure 4a is a test report for the antibacterial test of the antibacterial insulating epoxy flooring of the present invention, Figures 4b to 4e are actual photos of the antibacterial test of Figure 4a, Figure 5a is the adhesive strength of the antibacterial insulating epoxy flooring of the present invention B. Test reports for tensile strength and compressive strength and various insulation tests, and FIG. 5b is a performance comparison table for various test results in FIG. 5a.

In describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted. In addition, although preferred embodiments of the present invention will be described below, the technical idea of the present invention is not limited or limited thereto and can be modified and implemented in various ways by those skilled in the art, of course.

(Raw Material Mixture of Antibacterial Insulation Epoxy Flooring)

First, as shown in FIG. 1, the antibacterial insulating epoxy flooring agent according to one aspect of the present invention, in a state in which the antibacterial insulating epoxy flooring subject 11 and the curing agent 12 described later are mixed in advance, the subject just before construction It is prepared by mixing (11) and curing agent (12) in a ratio of 4 to 6: 1, preferably 5: 1, and the formulation of the first main agent 11 used in the antibacterial insulating epoxy flooring is as follows.

① Production of resin components (1st main ingredient formulation)

20 to 60 parts by weight of a first epoxy resin having an epoxy resin equivalent weight (EEW) of 187 to 205 [g/eq] (for example, 'YD-128' in [Table 2], hereinafter the same) 20 to 60 parts by weight (preferably Preferably, 40 to 55 parts by weight, more preferably 45 to 50 parts by weight, most preferably 48 parts by weight); 2 to 20 parts by weight of a non-reactive diluent (preferably, 1 to 10 parts by weight of a first non-reactive diluent with both plasticizer (eg GL300) and a second non-reactive diluent with both solvent and plasticizer (eg N-10) 1 to 10 parts by weight, more preferably, 1.1 to 2 parts by weight of the first non-reactive diluent and 2 to 5 parts by weight of the second non-reactive diluent, most preferably, 1.2 parts by weight of the first non-reactive diluent to the second non-reactive diluent. 2.4 parts by weight of diluent); 1 to 6 parts by weight of a reactive diluent (LGE) for viscosity control having an epoxy resin equivalent weight (EEW) of 275 to 300 [g/eq] (preferably, 3 to 5 parts by weight, more preferably 3.5 to 4.5 parts by weight, most preferably, 4 parts by weight); 6 to 50 parts by weight of a filler (preferably, 1 to 10 parts by weight of a first filler (eg TAL G325) and 5 to 40 parts by weight of a second filler (eg barium sulfate), more preferably, 4 to 7 parts by weight of one filler and 25 to 35 parts by weight of a second filler, most preferably, 5 parts by weight of the first filler and 30 parts by weight of the second filler); and 0.5 to 10 parts by weight (preferably 2 to 7 parts by weight, more preferably 2.75 to 5 parts by weight, most preferably 3 parts by weight) of an antibacterial agent as an additive; is mixed to blend the first main agent (11).

In the first subject matter, the lower limit of the additive is primarily 0.5 parts by weight, the lower limit is preferably 2.75 parts by weight, and if the content of the additive is too high (based on the total amount of 100 parts by weight of the subject matter, if it exceeds 5 parts by weight), the adhesive strength It is not desirable because there is a problem.

In addition, a small amount of yellow pigment and white pigment may be added to the above main material as other additives, and the yellow pigment (including 'iron oxide sulfur' for example) is 1 to 10 parts by weight (preferably 1.2 to 2 parts by weight). , most preferably, 1.7 parts by weight); and 1 to 10 parts by weight (preferably, 3 to 5 parts by weight, most preferably 4 parts by weight) of a white pigment (for example, 'A-TiO ₂ ') may be added.

Moreover, as other additives, a small amount of an antifoaming agent, a leveling agent, and a dispersing agent are added to improve leveling by slightly reducing surface tension and slightly increasing surface slippage as well as defoaming. CFC-177H') 0.1 to 5 parts by weight (preferably, 0.3 to 0.5 parts by weight, most preferably 0.4 parts by weight), leveling agent (eg, 'Afcona 2754') 0 to 5 parts by weight (preferably 0.1 to 1 part by weight, most preferably 0.1 part by weight), and a dispersant (eg, 'ANTITERA 203') 0 to 5 parts by weight (preferably 0.1 to 1 part by weight, most preferably 0.2 part by weight) Part) is preferably added.

Meanwhile, the formulation of the first curing agent 12 to be mixed with the first main agent is as follows.

② Preparation of curing agent component (first curing agent)

1 to 10 parts by weight (preferably, 2 to 7 parts by weight, more preferably 3 to 5 parts by weight, most preferably 4 parts by weight); 2 to 20 parts by weight of a non-reactive diluent (preferably, 1 to 10 parts by weight of a first non-reactive diluent (for example, 'KUMANOX 3113') that serves as a catalyst to increase the curing speed and to maintain physical properties to control the weakening of physical properties 1 to 10 parts by weight of the second non-reactive diluent (eg 'TH428D'), more preferably, 1.5 to 3 parts by weight of the first non-reactive diluent and 2 to 4 parts by weight of the second non-reactive diluent, most preferably, 2 parts by weight of the first non-reactive diluent and 3 parts by weight of the second non-reactive diluent); 5 to 15 parts by weight (preferably, 8 to 13 parts by weight, more preferably, 10 to 11 parts by weight) of an amine curing agent having an active hydrogen equivalent (A.H.E.W) of 110 [g/eq] (eg 'D 230') , most preferably, 10.4 parts by weight); and 0.1 to 2 parts by weight (preferably 0.4 to 1.5 parts by weight, more preferably 0.55 to 1 part by weight, most preferably 0.6 parts by weight) as an additive; is mixed to blend the first curing agent 12.

In the first curing agent, if the content of the curing agent resin is too low, curing is not sufficient, which is a problem. On the other hand, if the content of the non-reactive diluent is too low, there is a problem that the viscosity is increased and the workability is poor. This will cause conflicting problems, so it must be within the above appropriate range.

In addition, also in the first curing agent, the lower limit of the additive is 0.1 parts by weight and the lower limit is preferably 0.55 parts by weight, and if the content of the additive is too high (based on 20 parts by weight of the total amount of the first curing agent, 1 part by weight If it exceeds), there is a problem in adhesive strength, which is not preferable.

Preferably, it is desirable to have an adhesive strength of 1.5 times or more of the reference value (3.0 [N/mm ² ]) presented in the 'KS F 4923' standard for the insulated flooring of the present invention, and therefore 4.5 [N/mm ^{2 ]} ] It is desirable to have an adhesive strength of greater than or equal to. Also, it is preferable to have tensile strength and compressive strength 1.5 times or more of the reference values (15 [N/mm ² ] and 50 [N/mm ² ]) as shown in FIG. 5B.

Above all, in the case of the insulation effect of the present invention, the insulation resistance is preferably 10 ^{11 to 13} [Ω], more preferably 10 ^{12 to 13} [Ω] so as to far exceed the standard value (10 ⁶ [Ω]).

The most preferred example as an inorganic antimicrobial agent, which is a key antimicrobial agent in the components of the present invention, is, as shown in the following [Table 1], at least one or more of SiO ₂ , Al ₂ O ₃ , Ag ₂ O, ZnO, etc. (preferably, A metal oxide or a chemical composition thereof, including at least Ag ₂ O and ZnO.

As described above, preferred exemplary product names of each component of the first main agent and the first curing agent are illustrated in the examples of [Table 2].

(Raw material formulation for dedicated primer as an antibacterial insulating epoxy flooring)

On the other hand, a dedicated primer 23 for pretreatment is applied to the construction site before applying the antibacterial insulating epoxy flooring 13. The dedicated primer may use an existing primer, but preferably the following In a state in which the second main agent 21 and the second curing agent 22 are previously mixed, the ratio of the second main subject 21 and the second curing agent 22 is preferably 1.5 to 2.5: 1 before applying the primer. is prepared by mixing at a ratio of 2:1, and an exemplary formulation of the second main agent 21 used in the exclusive primer is as follows.

① 2nd theme combination

10 to 80 parts by weight of a first epoxy resin having an epoxy resin equivalent weight (EEW) of 400 to 500 (eg YD-011), 5 to 30 parts by weight of a first solvent (eg IPA), and a second solvent (eg YD-011) B - C) 5 to 30 parts by weight and 1 to 10 parts by weight of an additive (eg SILANE) are mixed so that the solid content is 50 to 60% (preferably about 55%) and the viscosity is 600 to 700 CPS do.

In addition, an exemplary formulation of the second curing agent 22 mixed with the second main agent 21 is as follows.

② Production of 2nd curing agent

10 to 40 parts by weight of a third curing agent resin having an active hydrogen equivalent (A.H.E.W) of 70 to 80 (eg G-0432) and a second curing accelerator having an active hydrogen equivalent (A.H.E.W) of 10 to 20 (eg K-64 ) 1 to 10 parts by weight, 1 to 10 parts by weight of a first solvent (eg IPA), 1 to 15 parts by weight of a second solvent (eg B - C), and 1 to 15 parts by weight of a third solvent (eg Ethanol) 10 parts by weight are mixed so that the solid content is 45 to 55% (preferably about 50%) and the viscosity is 150 to 200 CPS.

(Floor construction method using antibacterial insulation epoxy flooring)

Now, a floor construction method using an antibacterial insulating epoxy flooring agent according to another aspect of the present invention will be described in detail with reference to FIG. 3 .

First, the work area such as the area or shape of the area to be applied with the antibacterial insulating epoxy flooring according to the present invention is investigated, and the construction area is selected (S100). At this time, if the substrate for the construction of the antibacterial insulating epoxy flooring is a newly constructed concrete part, the concrete must be sufficiently cured (when pouring new concrete, it must be cured for at least 20 days based on 20 degrees).

After that, remove foreign substances from the area to be constructed, completely remove oil, moisture, dust, leading film, and other foreign substances on the surface to be painted (S200), if necessary, use a planer, grinding machine, blasting, chipping, or diamond wheel grinder It is necessary to remove contaminants on the surface to make a clean surface, and to remove the laitance of the upper layer of concrete to increase the adhesion with the epoxy resin. After washing the floor that has been used with a dedicated cleaning agent for contaminated oil or release agent, make sure to work cleanly during this primer and top coat work, and also dry the surface to be coated sufficiently. The appropriate PH value standard for the coated surface is PH 7 - 9, moisture content is less than 6%. In addition, gaps or grooves are filled with epoxy pitty (eg, 'D-400'), and joints or joints are filled with an epoxy elastic sealing agent (eg, 'D-600') after V-cutting. Of course, it is necessary to enhance the background strength of the base surface by plastering the raised portion of the base surface with epoxy resin mortar after chipping.

Thereafter, mixing the quick-drying primer and performing the quick-drying primer treatment, put the second main agent and the second hardener in a weight ratio of, for example, 2:1 in a main container, stir them with a mixer to mix well, and then apply the quick-drying primer. It is used for work, but sufficiently mix the quick-drying primer with the second main agent and the second hardener at a weight ratio of 2:1 on the surface to be applied, and spread it thinly using a brush, roller, or spray so that the primer does not pool on the substrate, and apply it on the substrate surface. Paint as much as possible so that it is sufficiently absorbed (S300). In the case of one coat, the part where the paint is highly absorbed (the place where the base color is reduced) must be additionally coated with a primer.

At this time, in the primer treatment step (S300), the temperature of the surface of the paint or substrate must be 5 ° C or higher, and the work must be performed at 3 ° C or higher and a relative humidity of 65% or lower than the dew point to avoid contact with moisture. After the finish, use a dust collector to completely remove the dust on the surface before starting the primer work. If the concrete base is porous and does not form a sufficient coating film with one primer treatment, it is recommended to apply two coats.

Subsequently, after at least 24 hours have elapsed at 20° C. after the primer work and the quick-drying primer is completely dried, all contaminants on the coating film are removed and the mixture plastering step is performed.

The first main agent 11 and the first curing agent 12 of the present invention are mixed at a ratio of 5: 1 to mix an antibacterial insulating epoxy flooring, and the mixed epoxy plaster is applied to the area to be constructed (S400), After pouring on the primer, apply a coating film thickness of about 3mm using lacquer or spatula. After completion of the work, check the curing at 20 ℃ for 36 hours or more.

The theoretically most suitable application area is 0.33 m 2 / ℓ based on a dry film thickness of 3 mm, and the theoretical most suitable paint consumption is 4.05 kg / m 2 based on a dry film thickness of 3 mm.

At this time, the temperature of the surface to be coated must be 3 ° C or higher (preferably 10 ° C or higher is suitable), and the surface to be coated must be 3 ° C or higher above the dew point and 80% or less relative humidity to avoid condensation of moisture. Mix the whole subject and hardener uniformly for about 2 - 3 minutes with a high-speed stirrer (RPM 1,000-1,500) according to the mixing ratio and use it quickly (within 10 minutes at 20℃) considering the leveling of the construction seam. There is a need. In addition, no dilution is a principle, but epoxy thinner can be used within a maximum of 3% to improve leveling in winter.

Finally, through the inspection step (S500), the shipping step is performed (S600).

Examples of suitable properties of the mixture plastering step (S400) are shown in the following [Table 3].

Optimal Example (Example 6)

First, as shown in [Table 2], 48 parts by weight of a first epoxy resin ('YD-128' from 'Kukdo Chemical') having an epoxy resin equivalent weight (EEW) of 187 to 205 [g/eq] ; 1.2 parts by weight of the first non-reactive diluent ('GL300' from 'LG Chem') and 2.4 parts by weight of the second non-reactive diluent ('N-10' from 'Eil Industry Co., Ltd.'); 4 parts by weight of reactive diluent (LGE); 4 parts by weight of an epoxy reactive diluent (LGE) having an epoxy resin equivalent weight (EEW) of 275 to 300; 0.4 parts by weight of an antifoaming agent ('CFC 177H' from 'Cheongwoo CFC'), 0.1 part by weight of a leveling agent ('Afcona 2754' from 'Cheongsan Chemtech'), and a dispersing agent ('BYK-Chemie GmbH 'ANTITERA 203' from 'Company') 0.2 parts by weight; 5 parts by weight of a first filler ('TAL G325' of 'Ilsan Chemical Co., Ltd.') and 30 parts by weight of a second filler ('Barium Sulfate'); And as an additive, 3 parts by weight of an antibacterial agent of 'Keumyang Materials Industry' as shown in [Table 2]; And as other additives, 4 parts by weight of a white pigment ('A-TiO ₂ '), 0.2 parts by weight of a first yellow pigment ('iron sulfur oxide'), and 1.5 parts by weight of a second yellow pigment (other inorganic yellow pigments); is mixed to blend the first main agent (11).

In addition, as shown in [Table 2], 4 parts by weight of a curing agent resin ('DM825' from 'Inchang Trading') having an active hydrogen equivalent (A.H.E.W) of 350 to 400; 2 parts by weight of a first non-reactive diluent ('KUMANOX3111' from 'Kumho Petrochemical Co., Ltd.') and 3 parts by weight of a second non-reactive diluent ('TH428D' from 'Kukdo Chemical'); 10.4 parts by weight of an amine curing agent ('D 230' from 'Huntsman', Singapore); and 0.6 parts by weight of an antibacterial agent of 'Keumyang Material Industry Co., Ltd.' as shown in [Table 2] as an additive; is mixed to blend the first curing agent 12.

Thereafter, the first main agent and the first curing agent are mixed in a weight ratio of 5: 1, and the curing agent is placed in a main container and stirred with a mixer until a uniform state is achieved.

Example 7

The content of the reactive diluent in the main agent is 3.7 parts by weight, the content of the antimicrobial agent as an additive is 3.5 parts by weight, the content of the second yellow pigment is 1.3 parts by weight, and the content of the amine curing agent (D 230) in the curing agent is 10.3 parts by weight, It is the same as in Example 6, except that the content of the antimicrobial agent as an additive is 0.7 parts by weight.

Example 8

The content of the reactive diluent in the main agent is 3.5 parts by weight, the content of the antimicrobial agent as an additive is 4 parts by weight, the content of the second yellow pigment is 1 part by weight, and the content of the amine curing agent (D 230) in the curing agent is 10.2 parts by weight, It is the same as in Example 6, except that the content of the antimicrobial agent as an additive is 0.8 parts by weight.

Example 1

In the main material, the content of the reactive diluent was 4.5 parts by weight, the content of the first filler was 6 parts by weight, the content of the second filler was 30.7 parts by weight, the content of the antimicrobial agent as an additive was 0.5 parts by weight, and the content of the second yellow pigment was 1.8 parts by weight. It is the same as in Example 6 except that the content of the amine curing agent (D 230) in the curing agent is 10.9 parts by weight and the content of the antimicrobial agent as an additive is 0.1 parts by weight.

Example 2

In the main material, the content of the first non-reactive diluent is 1.4 parts by weight, the content of the reactive diluent is 4.5 parts by weight, the content of the first filler is 6 parts by weight, the content of the antibacterial agent as an additive is 1 part by weight, and the content of the second yellow pigment is 1 part by weight. 1.8 parts by weight, the content of the amine curing agent (D 230) in the curing agent is 10.8 parts by weight, and the content of the antimicrobial agent as an additive is 0.2 parts by weight, the same as in Example 6.

Example 3

In the main material, the content of the first non-reactive diluent is 1.4 parts by weight, the content of the reactive diluent is 4.5 parts by weight, the content of the first filler is 5.5 parts by weight, the content of the antimicrobial agent as an additive is 1.5 parts by weight, and the content of the second yellow pigment is 1.5 parts by weight. 1.8 parts by weight, the content of the amine curing agent (D 230) in the curing agent is 10.7 parts by weight, and the content of the antimicrobial agent as an additive is 0.3 parts by weight, the same as in Example 6.

Example 4

In the main material, the content of the first non-reactive diluent is 1.4 parts by weight, the content of the reactive diluent is 4.5 parts by weight, the content of the antimicrobial agent as an additive is 2 parts by weight, the content of the second yellow pigment is 1.8 parts by weight, and the amine in the curing agent It is the same as in Example 6 except that the content of the curing agent (D 230) is 10.6 parts by weight and the content of the antimicrobial agent as an additive is 0.4 parts by weight.

Example 5

The content of the reactive diluent in the main agent is 4.2 parts by weight, the content of the antimicrobial agent as an additive is 2.5 parts by weight, the content of the second yellow pigment is 1.8 parts by weight, and the content of the amine curing agent (D 230) in the curing agent is 10.5 parts by weight, It is the same as in Example 6, except that the content of the antimicrobial agent as an additive is 0.5 parts by weight.

comparative example

In the main material, the content of the reactive diluent is 4.5 parts by weight, the content of the first filler is 6 parts by weight, the content of the second filler is 31 parts by weight, the content of the antibacterial agent as an additive is 0 parts by weight, the content of the leveling agent is 1 part by weight , The content of the white pigment is 3.3 parts by weight, the content of the second yellow pigment is 1.8 parts by weight, the content of the amine curing agent (D 230) in the curing agent is 11 parts by weight, and the content of the antimicrobial agent as an additive is 0 parts by weight. , the same as in Example 6.

Experimental Example 1

Now, with respect to the eco-friendly coating agent prepared in Example 6, directly from the 'Korea Far Infrared Association', and for the flooring materials prepared by Examples 1 to 5, 7, 8 and Comparative Examples, the 'Incorporation Under the same conditions and method as the test method conducted by the Korea Far Infrared Ray Association, an antibacterial test was conducted for four antimicrobial species (Pseudomonas aeruginosa, Escherichia coli, Staphylococcus and Pneumococcus).

In the best embodiment of the present invention (Example 6), all items were evaluated as "optimal conditions", and in the first to fifth examples, the antibacterial activity was somewhat inferior, and in the comparative example in which no antimicrobial agent was added, the antibacterial activity was around 70%. showed a drastic drop. However, compared to Example 1, it was found that the adhesive strength was somewhat lowered in Examples 7 to 8, but it was not so much to be concerned about.

More specifically, in the eco-friendly coating agents in Examples 6 to 8, the bacteria reduction rate after 24 hours fell below 99.9%, and it was found that bacteria were almost completely removed, and in Examples 1 to 5 It fell somewhat, but it could be seen that it still maintained the 80% range (see FIGS. 4a to 4e for the test method and the strain and experimental conditions used).

In contrast, in the flooring material in Comparative Example, as shown at the bottom of [Table 2], it was found that bacteria were not removed as much as 75.14% within 24 hours, and it was found that the required physical properties were insufficient.

Experimental Example 2 to Experimental Example 3

On the other hand, with respect to the eco-friendly flooring prepared in Example 6, 'Korea Testing & Research Institute (KTR)' conducted direct adhesion strength, tensile strength and compressive strength tests, as shown in FIGS. 5a and 5b, Both exceeded the standard value by 2 to 3 times, and the insulation resistance was also on the order of 10 ¹³ , confirming that it far exceeded the standard value of 10 ¹⁰ (the volume resistivity and surface resistivity were also the same).

In summary, according to the antibacterial insulating epoxy flooring material having excellent antibacterial properties and the floor construction method using the same according to the present invention, the following advantages exist.

1) Excellent mechanical properties such as impact resistance and abrasion resistance.

2) Excellent chemical resistance, water resistance, solvent resistance and chemical resistance.

3) Excellent adhesion and durability.

4) It has excellent dimensional stability due to low shrinkage.

5) Anti-static, dust-proof. Excellent waterproofness.

6) Since the gloss is excellent, there is no need for subsequent painting.

7) It is possible to paint 3mm with one coat.

8) Excellent smoothness and defoaming properties.

9) A beautiful appearance can be obtained.

10) Excellent antibacterial effect (E. coli, Pseudomonas aeruginosa, Staphylococcus, Pneumococcus: 99.9%)

The antibacterial insulating epoxy flooring material having excellent antibacterial properties and the floor construction method using the same according to the present invention can be applied to the following various industrial fields.

1) Factory floor and parking lot floor

2) Floors requiring dust protection, such as mechanical rooms and electrical rooms

3) Floors requiring electrical insulation in substations of subways and power plants

4) Floors requiring antistatic properties in the precision industry

5) Floors requiring other abrasion resistance and impact resistance

In the above, the present invention has been described according to an embodiment of the present invention, but changes and modifications made by those skilled in the art within the scope of the technical spirit of the present invention also belong to the present invention. Of course.

11: first subject matter 12: first curing agent
13: Antibacterial Insulation Epoxy Flooring
21: second subject matter 22: second curing agent
23 : Exclusive Primer

Claims (8)

As a two-component eco-friendly coating agent consisting of a subject and a hardener,
20 to 60 parts by weight of the first epoxy resin having an epoxy resin equivalent weight (EEW) of 187 to 205 [g/eq] and 1 to 6 parts by weight of a reactive diluent for viscosity control having an epoxy resin equivalent weight (EEW) of 275 to 300, 2 to 20 parts by weight of a reactive diluent, 6 to 50 parts by weight of a filler, and 0.5 to 10 parts by weight of an antimicrobial agent as an additive are mixed to form the first main agent 11,
1 to 10 parts by weight of a curing agent resin having an active hydrogen equivalent weight (AHEW) of 350 to 400 [g/eq]; 2 to 20 parts by weight of a non-reactive diluent; 5 to 15 parts by weight of an amine curing agent having an active hydrogen equivalent weight (AHEW) of 110 [g/eq]; and 0.1 to 2 parts by weight of an antibacterial agent as an additive; to mix the first curing agent 12,
An antibacterial insulating epoxy flooring agent, characterized in that made by mixing the main agent and the curing agent in a weight ratio of 4 to 6: 1. According to claim 1,
0.1 to 5 parts by weight of an antifoaming agent, 0.1 to 5 parts by weight of a leveling agent, and 0.1 to 5 parts by weight of a dispersant are added to the first main agent (11) as other additives based on 100 parts by weight of the total content of the main agent. Insulated Epoxy Flooring. According to claim 1,
Antibacterial insulating epoxy flooring, characterized in that 1 to 10 parts by weight of yellow pigment and 1 to 10 parts by weight of white pigment are added to the first main agent (11) based on 100 parts by weight of the total content of the main agent. According to claim 1,
In the first main agent (11), the first epoxy resin is 45 to 50 parts by weight, the epoxy reactive diluent is 3.5 to 4.5 parts by weight, and the non-reactive diluent is a plasticizer combined first non-reactive diluent 1.1 to 2 2 to 5 parts by weight of a second non-reactive diluent for both solvent and plasticizer, 29 to 42 parts by weight of the filler, and 2.75 to 5 parts by weight of the antibacterial agent,
In the first curing agent 12, the curing agent resin is 3 to 5 parts by weight, and the non-reactive diluent is 1.5 to 3 parts by weight of the first non-reactive diluent that serves as a catalyst for increasing the curing speed and weakens physical properties. 2 to 4 parts by weight of the second non-reactive diluent for maintaining physical properties, 10 to 11 parts by weight of the amine curing agent, and 0.55 to 1 part by weight of the antibacterial agent. According to claim 1,
An antibacterial insulating epoxy flooring agent, characterized in that made by mixing the main agent and the curing agent in a weight ratio of 5: 1. According to claim 1,
The antibacterial insulating epoxy flooring,
Antibacterial insulation epoxy characterized by having adhesive strength, tensile strength and compressive strength of 1.5 times or more of each standard value presented in the 'KS F 4923' standard for insulated flooring, and insulation resistance of 10 ^{12 ~ 13} [Ω] floor agent. A floor construction method using the antibacterial insulating epoxy flooring of any one of claims 1 to 6,
(a) conducting an investigation of the work area including the area or shape of the area where the antibacterial insulating epoxy flooring is to be applied and selecting a construction area (S100);
(b) removing foreign matter from the construction site selected in step (a) (S200);
(c) after the step (b), mixing a quick-drying primer and performing a quick-drying primer treatment, but applying a quick-drying primer obtained by mixing a second main agent and a second curing agent in a weight ratio of 1.5 to 2.5:1 (S300); and
(d) after the step (c), when the quick-drying primer is dried, mixing the antibacterial insulating epoxy flooring and applying it to the area to be constructed (S400);
Floor construction method using an antibacterial insulating epoxy flooring, characterized in that it comprises a. According to claim 7,
In step (d), based on the dry film thickness of 3 mm, the application area is 0.33 m 2 / ℓ and the paint consumption is 4.05 kg / m 2,
A floor construction method using an antibacterial insulating epoxy flooring, characterized in that the temperature of the surface to be coated is 3 ° C or higher, the dew point is 3 ° C or higher, and the relative humidity is 80% or lower.